treeview: Invalidate children properly

GtkTreeView still uses regions (yay!), so we need to invalidate the
regions when hiding/showing children, and not their siblings.

diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 0b1599ee3721e13f9338f33cc74a6c5d7115f6e7..182374c47fa67b587b2176a6b16f3c685114feb7 100644 (file)
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -11922,7 +11922,7 @@ _gtk_tree_view_reset_header_styles (GtkTreeView *tree_view)
       if (!header_widget)
         header_widget = gtk_tree_view_column_get_button (column);
 
-      _gtk_widget_invalidate_style_context (header_widget, GTK_CSS_CHANGE_POSITION | GTK_CSS_CHANGE_SIBLING_POSITION);
+      _gtk_widget_invalidate_style_context (header_widget, GTK_CSS_CHANGE_PARENT_REGION);
     }
 }